# David Mackay Cassidy

> medical superintendent at the Lancaster Mental Hospital

**Wikidata**: [Q135395572](https://www.wikidata.org/wiki/Q135395572)  
**Source**: https://4ort.xyz/entity/david-mackay-cassidy


## References

1. FamilySearch Family Tree
2. The Times. 1936
3. Who's Who
4. David Mackay Cassidy, M.D.